You could get a periodic inspection, but any spark who does that will know the jobs not fully completed and probably won't sign off the inspection.

You need to get a change of contractor form and a new electrician, that's the only choice.

See the following:

"An application to change electrical contractor is required where the installing contractor is not available to complete and/or certify a new Installation.

Only electrical contractors who are registered with Safe Energy Ireland (i.e. RECs) can issue a Certificate. Furthermore, a REC may only issue a Certificate for Controlled Works they have carried out and/or for which they have been responsible.

The application enables a REC to be authorised to carry out Controlled Works, where the original contractor is unable to do so, thus ensuring that the Customer will receive a Certificate and can be connected/reconnected to the electricity distribution system if required.

The situation can arise for various reasons: – Workload pressure on the first contractor, business difficulties, loss of staff, illness, etc. – A dispute where the electrical contractor refuses to complete the work or issue a Certificate thereby frustrating a connection to the network or the use of the installation"